Engines

Question 1

Max TGT - Takeoff and Go-around All Engines.

Answer 1

635 C for 5 minutes.

Question 2

Max TGT - Takeoff and Go-around One Engine Inoperative.

Answer 2

635 C for 10 minutes.

Question 3

Max TGT for Start

Answer 3

635 C

Question 4

Max Continuous TGT

Answer 4

610 C

Question 5

Maximum N1

Answer 5

100 %

Question 6

Maximum N2

Answer 6

100 %

Question 7

Maximum continuous oil temperature

Answer 7

155 C

Question 8

Minimum oil temperature before takeoff

Answer 8

50 C

Question 9

Minimum oil pressure.

Answer 9

60 PSI

Question 10

Minimum oil quantity

Answer 10

11 qt + estimated consumption, average estimated consumption = 0.3 qt/h

Question 11

For a manual engine start, observe how many minutes maximum cycle time.

Answer 11

2 minutes

Question 12

For ground starts (automatic or manual), how many seconds of pause are required between successive cycles?

Answer 12

15 seconds

Question 13

How many minutes of cooling period is required, subsequent to three failed cycles or 5 min of continuous crank?

Answer 13

30 minutes

Question 14

The starter must not be run when N2 is above.

Answer 14

10% on the ground
18% in flight

Question 15

TFLEX cannot be

Answer 15

‐ Higher than TMAXFLEX, equal to ISA + 55 °C.
‐ Lower than the flat temperature (TREF).
‐ Lower than the actual OAT.

Question 16

Engine Idle Parameters

Answer 16

EPR about 1.01
N1about 21.4 %
N2 about 57.8 %
EGT about 414 °C
FF about 350 kg/h